HTML/XML/XHTML

We’ll introduce wireless programming languages by first discussing the three markup languages. These include Hypertext Markup Language (HTML), Extensible Markup Language (XML), and the combination of the two, Extensible Hypertext Markup Language, (XHTML).

HTML

HTML is the primary format used on the World Wide Web. HTML can display Web pages with a wide range of colors, shapes, and objects. Although not a true programming language, HTML has increased in power over the years.

HTML is actually a loosely defined subset of XML. However, whereas XML is a strict language (as you will learn), HTML takes many liberties that have helped it become the popular presentation tool it is today. Although the spirit of the young Internet encouraged ...